Is a Common Bile Duct Diameter of Over 3mm Considered Normal?

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Normal Bile Duct Diameter and Related Issues

Under normal conditions, the inner diameter of the common bile duct ranges from 3 to 6 millimeters. If it is less than 3 millimeters, one should consider the possibility of common bile duct stenosis. If it is greater than 6 millimeters, one should consider whether there is dilation of the common bile duct. Generally, when it exceeds 8 millimeters, it can be diagnosed as dilation of the common bile duct. Therefore, this numerical value is a basis for judgment, and of course, it should also be determined based on some clinical symptoms.

Management of Dilation of the Common Bile Duct

If there is dilation of the common bile duct, it is recommended to adopt a scientific diet in daily life and consume more soy products. If there are symptoms such as abdominal pain, fever, jaundice, etc., attention should be paid, and observation should continue. Avoid eating greasy, spicy, stimulating, and high-cholesterol foods. Regular B-ultrasound examinations are also recommended.

Causes of Dilation of the Common Bile Duct

When dilation of the common bile duct is detected during examination, it is usually due to some biliary diseases. Therefore, it is recommended to undergo hepatobiliary ultrasonography or an upper abdominal CT scan to determine if there are gallbladder diseases or infections.

Treatment of Dilation of the Common Bile Duct

No matter what causes dilation of the common bile duct or some adverse diseases, attention should be paid. Firstly, a comprehensive and targeted examination should be performed at the hospital to determine the cause before correct treatment and medication can be administered. This can reduce and mitigate the threat posed by the disease to the body.